Automatic valve



Feb. 4, 1930.

F. A. BROWNE I AUTOMATIC VALVE Filed Aug. 20, 1.92 6

HIIH whim INVENTOR:

. WITNESSES:

A TTORNEYS Patented Feb. 4, 1930 1 "i -20 added weight; .7 V a Other objects and advantages willbegap- 'parentfrom' the following, description of a I I H FRANKQAQ BiaowivE; or wAYnn, r NnsYLvANrA, gissrenota To THE BAR-BER AfsrHALr comm-Y, or 'NIAY i a" ll Ap iieaadd fiiedad 'ue d gma:

' thereceptacle. V I I More specifically'this'invention has refer- ."ence. to an automatic control valve useful in circulatory refrigerating system's wherein all of theliqu'id refrigerantfiows through, the valve, is evaporated for purposes ofre-- frigeration, and thence flows back to means A ,7 I V -jcounterweight18, V

The properinflowcontrol'of refrigerating medium into the casing l'is accomplished by fa ftubular receptacle v 19 provided with a screw-threaded boss by' means of which it is attached to that end of the hollow shaft. 8 projected into the open-top compartmentb, The tubular receptacle 19 has itslower end 70 whereby it re-liquified.

" I An object of this lnvention-isto provide a 15 novel control for'va lves of this character 7 which is intermittently actuated to effect jclo sure of'the valve byadded Weight diverted from the normal flow, and is automatically;

re-opened incident to evaporationof such typical embodiment of my invention, while the subjoined claims serve to define those features deemed novel in the-art. I

In thedrawirigsE- Fig. I is a view partly'in section and partly;v

in elevation illustrative of. my automatic valve; and, I

- improved ,7 my automatic valve is enclosed in acylindrr} cal casing orwhat is commonly termed a' h boiler lhaving one end'2 permanently closed-in and the other fitted with a removable head v3 securedthereto in anylconvenient isasffollows: Assuming the receptacle 19 is 1 empty, the counterweight "18 holds the c10 sure' device 13 away from the discharge T12,

manner. The removable-head 3as well as a the shell flange 4 to which it is at-tachedi s of heavy section, whereas the boiler body 1 is relatively thin; and said'headis provided,

with an open-top compartment 5 of substan shell 1 with its major depth well above half,

' I the diameter thereof, whileitsend wall 6 is provided with'a bearing boss 7. The bearing {#59 boss 7 is' bored to snugly receive a hollow the boiler 1' into 5 evaporatio nlof such addedliquid' weight fromgvented;

"terw'eight 18."

to rotate'and swing'the device 13 into clo PHILADELIEI-IIA, r'nri tsynvama, aooRroRArIon, or witsr via Serial Nd, 130,4 3, a

held in place by means of ascr'ewj gland 1O 'fwhereby leakage around the shaft 8 from the compartment'5is;pre-

Liquid refrigerant issupplied to thejboiler I I 1 by way o fja conduit 11 having a. discharge 12- under control of the olosure"device I3car- .riedby one arm 1% of an angled member 15; clamped on the tubularsha ft 8 by a set sorewf -16,Iwher'eas the other-farm 17 .of saidjangled member affords support" for an' adjus'table closed in by arelativel'y -heavy cap-piece-21,

seen that, as liquid rises in theboiler 1 to. the:

. level of the jshaft S itfwill flow ther'ethrou'glr v into the tubular receptacle l9. A collar 2 3 provided with a clamping screw 24; serves to a I "prevent lateral movement of the shaft18; I I f while the'counterweight-l8 is adjusted on the Fig. II is a sectional v1ew taken as indicat-"Fv r 17 t 1 p s t h t it S g y j Q balances theica'ppiece 2110f the receptacle 19 when empty. A laterallydirectedstop 25 is provided in the open-top compartmentfi .to prevent the receptacle 19 assuming a hori .zont'al positionunder' the action of the coun Theoperati'on of my novel automatic valve which'jointly constitute;thecontrol valve in; 1

aicirculatory refrigerating system. As a re I a'ndrises till it overfiowsby way of the hol 5 1 low shaft 8 int-0 the receptacle 19 until the latter overbalances the counterweight 18. The added weight of 1 liquid refrigerating medium in the receptacle 19 causes the same sure position over the discharge 12, thereby arresting further inflow of liquid into the boiler 1. As the added weight of liquid in the receptacle 19 evaporates, the said receptacle will rotate in an opposite direction until the cap-piece 21 engages the lateral stop 25; and, simultaneously, the closure device 13 willhave been removed from over the discharge 12. Particular attention is drawn to the fact that as the liquid in the receptacle 19 evaporates, the level of the liquid in the boiler 1 is similarly lowered by evaporation. Upon re-opening of the discharge 12 the liquid level in the boiler 1 again rises until it reaches the bore of the hollow shaft 8, whereupon the cycle of operations above set forth are automatically repeated. r The receptacle 19 operates in the open-top compartment 5 free of all external liquid interference and it is alternately rocked by the added weight of liquid refrigerant overflow 'ingthereinto through the hollow shaft 8 and theevaporation of said overflow to cficct closure and opening of the automatic control valve 1213. Furthermore the quantity of overflow into the receptacle 19necessary to effect automatic time operation of the device I the parts '18 and 24 involved in my novel valve.

'lfVhile I have shown a particular construction of my automatic controlvalve it is to be understood the details as to form and arrangement are capable of modification within the scopeof the claims.

Having thus vdescribed my invention, I claim v 1. In a circulatory refrigerating system an automatic control comprising an enclosure with a valved entrance for liquid refrigerant, said enclosure embodying an open-top compartment excluding refrigerant, and a flow regulator for the control of the liquid refrigerant including a pivotal duct with a terweight member actuable to close and open the inflow entrance.

5. In combination, a chamber having an entrance through which volatile liquid may flow into the chamber, a valve arranged to control thefiow of liquid into the chamber,

and an open pivoted receptacle within the chamber arranged to receive overflow of liquid from the chamber through its pivot and actuated by the weight of the overflow to close the valve. i

6. In combination, a chamber having an entrance through which volatile liquid may flowinto the chamber, a valve arranged to control the flow of liquid into the chamber, and an open pivoted receptacle within the chamber arranged to receive overflow of liquid from the chamber through its pivot and rocked in one direction by the weight ,of t'he overflow toclose the valve and arranged to rock in the opposite direction uponevaporation of th overflow to open the valve.

In testimony whereof, I have hereunto signed my name this 5th day of August, 1926.

i FRANK A, BROWN is capable of variation by adjustment of counterbalanced receptacle in the open-top compartment, said receptacle swinging in one direction by added weight of refrigerant overflowing through the pivotal duct and in q.

the opposite direction upon evaporation of such added weight and part of that held in mally overbalanced by an adjustable coun- ISQ 

